Ofanim

Ofanim is a hovering watcher that keeps a loose position around the player instead of attacking. It drifts at a fixed offset, faces the player, and feels deliberate.

The key mechanic is eye contact. An Ofanim stays around for 60 to 300 seconds unless the player looks directly at it first. If that happens, it vanishes immediately.

You can meet it in Alien, Tree Mirror, Aether, Ball, Dungeon 6, and Firmament biomes. It is not a combat vermin. For example, a hate wand can damage it, but that is difficult because the shot needs an impactable surface right beside the Ofanim. If you do manage to kill one before it disappears, it drops a vermin oracle block.